Question

evaluate using identities 5.68×5.68-2.68×2.68/5.68+2.68

Answer 1

post questions in proper way and completely

Answer 2

Step-by-step explanation:

Solution:-

[5.65 × 5.68 - 2.68 × 2.68]/(5.68 + 2.68)

=> [(5.68)^2 - (2.68)^2]/(5.68 + 2.68)

=> [(5.68 + 2.68)(5.68 - 2.68)]/(5.68 + 2.68)

[∵ a^2 - b^2 = (a + b)(a - b)]

=> 5.68 - 2.68

=> 3 Ans.